'Futuredial' makes some good software for cell phones. They make 'Snapmedia, Snapsync, and Snapdialer'. Snapmedia lets you put pictures and ringers on your phone, snapsync lets you do the phonebook stuff, and snapdialer acts as a modem utility. I used these for my sprint phone but I think they work for other phones as well.
-AWOL
January 2005
If you are on a Mac, try this link: http://www.macmedia.sk/
Works with my Nokia (different model)
Roger S
August 2004
I can answer this question...
Can I use software to manage my Nokia 3310's phonebook?